Radiant energy – Infrared-to-visible imaging – Including detector array
Patent
1992-09-29
1993-12-21
Fields, Carolyn E.
Radiant energy
Infrared-to-visible imaging
Including detector array
250330, 250339, 2504581, 374 9, 364557, G01N 2164, G01N 2500
Patent
active
052723402
ABSTRACT:
The present invention comprises a method and apparatus for determining actual temperature, reflectivity and fluorescence of a surface and comprises in the preferred embodiment a two-dimensional focal plane array of rapidly tunable infrared detectors, 11, adapted to detect the emitted infrared flux from a surface of interest, 10, across pre-selected spectral segments in the 4-15 .mu.m range. The invention further comprises a computer having deconvolution algorithms, 13, for isolating the effects of reflectivity, fluorescence and environmental factors affecting infrared emission for each pixel of the generated image at various spectral segments in the 4-15 .mu.m range. The device further includes means for generating images of temperature, emissivity and fluorescence for diagnostic use. The preferred embodiment of the invention also contemplates the use of thermostated black body reference emitters, 12, at the edges of the field of view for enhancing and speeding deconvolution of the detected data across the 4-15 .mu.m spectrum.
REFERENCES:
patent: 4880314 (1989-11-01), Kienitz
patent: 4974182 (1990-11-01), Tank
patent: 5099121 (1992-03-01), Allen
Anbar, et al.; "Scope and Limitations of Imaging Using Multiwavelength Infrared Detection"; Optical Engineering (Oct., 1992) (First published Nov., 1991).
Amara, Inc.
Fields Carolyn E.
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